Effect of beryllium on plasma performance in JET

s (K Bethge, ed.) 1015 1018 Summers, D. D. R., S. K. Erents, M. Hugon, A. Hwang, R. Reichle, M. F. Stamp and P. C. Stangeby (1990). Measurements of the temperature dependence of carbon and beryllium fluxes in the JET boundary using a high heat flux probe. Proc. 9th Int. Conf. Plasma Surface Interactions in Contr. Fusion Devices, Bournemouth. UK. In publication Tanga, A., D. V. Bartlett, R. Gianella, C. Gowers, N. A. Gottardi, J. Jaquinot, P. J. Harbour, M. F. Johnson, E. Lazzaro, K. Lawson, P. Morgan, D. Stork, K. Thomson, B. Tubbing and M. von Hellermann (1989). Plasma characteristics of H-mode in JET with beryllium gettering. JET-(89)80, 53-55 Conf. Plasma Surface Interactions in Contr. Fusion Devices, Bournemouth, UK. In publication solubilisation into and permeation through wall materials. J. Nucl. Mat. 85, 345-349 Wesson, J. A., R. G. Gill, M. Hugon, F. C. Schuller, J. A. Snipes, D. J. Ward, D. V. Bartlett, D. J. Campbell, P. A. Duperrex, A. W. Edwards, R. S. Granetz, N. A. 0. Gottardi, T. C. Hender, E. Lazzaro, P. J. Lomas, N. Lopes Cardozo, K. F. Mast, M. F. F. Nave, N. A. Salmon, P. Smeulders, P. R . Thomas, B. J. D. Tubbing, M. F. Turner and A. Weller (1989). Disruptions in JET. Nucl. Fusion, 22, 641-665 Thomas, P. R . (1990). Results of JET operation with beryllium. Proc. 9th Int. Waelbroeck, F., I. Ali-Khan, K. J. Dietz and P. Wiesnhold (1979). Hydrogen